You may as well sync the entire database, rather than just posts, so then you get all the post revisions as well as any plugin configurations/data.

This is my normal method of developing a live site, locally. (Grab live DB drop Dev DB import Live DB into Dev) (The only fun bit is sending specific plugin configs up to the live site from the dev site)

To be honest and this is my opinion. If you are using a plugin to do this, you are not developing your site properly. As your development site won't be a true model of the live site. You should look at using version control for file management.
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Barry CarlyonNov 22 '12 at 15:36

Let alone the likely hood that using a plugin relies on PHP/Apache's memory limit to export the database from a command line application
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Barry CarlyonNov 22 '12 at 15:45